CN102723157A - Manufacturing method for medium-voltage high-energy zinc oxide resistor disc - Google Patents
Manufacturing method for medium-voltage high-energy zinc oxide resistor disc Download PDFInfo
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- CN102723157A CN102723157A CN2012101948426A CN201210194842A CN102723157A CN 102723157 A CN102723157 A CN 102723157A CN 2012101948426 A CN2012101948426 A CN 2012101948426A CN 201210194842 A CN201210194842 A CN 201210194842A CN 102723157 A CN102723157 A CN 102723157A
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- zinc oxide
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Abstract
Disclosed is a manufacturing method for a medium-voltage high-energy zinc oxide resistor disc. The manufacturing method includes: adding, by mole percentage, 0.5-1.2% of antimonous oxide, 0.1-0.6% of titanium dioxide, 0.5-1.3% of bismuth oxide, 0.8-2.1% of cobaltic oxide, 0.6-1.3% of manganese carbonate, 0.001-0.003% of silver carbonate, 0.3-0.6% of stannic oxide, 0.002-0.005% of strontium carbonate, 0.001-0.006% of boric acid and balance of zinc oxide serving as the major ingredient, ball-milling, mixing, spraying for granulation, water-containing, forming and sintering. The medium-voltage resistor manufactured by the method is lowered in residual voltage ratio and improved in through-flow performance, and the gradient reaches to 100-120V/mm, 10Ka residual voltage ratio can be controlled within 1.85-1.90 when a phi 60 resistor disc is taken as an example.
Description
Technical field
The present invention relates to a kind of middle manufacturing approach of pressing the high energy ZnO resistors sheet, belong to the resistor disc preparing technical field.
Background technology
See that from formula system zinc oxide resistance sheet mainly is divided into ZnO-Bi at present
2O
3-Sb
2O
3System and ZnO-Bi
2O
3-TiO
2System.At ZnO-Bi
2O
3-Sb
2O
3Sb-2O-3 forms spinelle phase Zn-7Sb-2O-(12) in the system in zinc oxide matrix in sintering process; This is pinned between the zincite crystal mutually; Suppressed growing up of zinc oxide grain, therefore an amount of Sb-2O-3 is doped with and is beneficial to the zinc oxide composite ceramic densified sintering product.Be characterized in size of microcrystal little (6-18 μ m), gradient high (200-300V/mm), residual voltage ratio is low but through-current capability is on the weak side.ZnO-Bi
2O
3-TiO
2The characteristics that are resistor disc are crystal grain average grain diameter (30-60 μ m) bigger than normal, gradient low (30-70V/mm), through-flow energy is high but limit voltage ratio (residual voltage ratio is higher).In the prior art, during all can't satisfying, these two kinds of systems press high throughflow, the requirement of low residual voltage ratio.Therefore, the method that needs a kind of new manufacturing zinc oxide resistance sheet.
Summary of the invention
Technical problem to be solved by this invention provides a kind of middle manufacturing approach of pressing the high energy ZnO resistors sheet, and the present invention can significantly reduce the middle piezoresistance residual voltage ratio of resistor disc, improves through-flow performance.
For solving the problems of the technologies described above, press the manufacturing approach of high energy ZnO resistors sheet among the present invention, may further comprise the steps:
(1) proportioning raw materials: in molar percentage; Additive: antimony oxide 0.5-1.2%, titanium dioxide 0.1-0.6%, bismuth oxide 0.5-1.3%, cobalt sesquioxide 0.8-2.1%, manganese carbonate 0.6-1.3%, silver nitrate 0.001-0.003%, tin ash 0.3-0.6%, strontium carbonate 0.002-0.005%, boric acid 0.001-0.006%, surplus is a major ingredient zinc oxide;
(2) ball milling: to take by weighing all components except that major ingredient zinc oxide be that additive adds in the ball mill to the proportioning of (1) set by step, by additive: pure water=1:1 ratio adding pure water, stirring ball-milling 3-5 hour;
(3) mixing and mist projection granulating of additive and zinc oxide: add good additive, zinc oxide and bond, the aluminum nitrate of ball milling in the dispersion mill; Ball milling 2-4 hour; The weight ratio of bond and zinc oxide is 1:100, and the weight ratio of aluminum nitrate and additive is 1:300; 55 ℃-60 ℃ of control slurry temperatures carry out mist projection granulating, process the material powder;
(4) moisture, moulding: the material powder that will make is undertaken moisture by 1-2%, old 12-24 hour, presses 3.2-3.25g/cm
3Be pressed into product;
(5) sintering: the product that compacting is obtained is got rid of bonds in 420 ℃, reaction time 20-24 hour, again in 1100-1200 ℃ of sintering, is incubated 2-4 hour.
The particle diameter of the powder of material described in the step (3) is controlled at 80-120 μ m.
Add the release agent glycerine described in the step (4) in the aqueous process.
Bond is PVA-1799 described in the step (3).
The present invention has following beneficial effect: the first, use for reference two kinds of formula systems characteristics separately through adjustment, and add appropriate amount of components again, effective controlled oxidation zinc uniform crystal particles growth reaches the purpose of enhancing product performance in sintering process thereby reach.Can make and burn till back product gradient and reach 100-120V/mm, residual voltage ratio is an example with Ф 60 resistor discs, and the 10kA residual voltage ratio can be controlled in 1.85-1.90, and common low pressure high energy resistor disc is many between 2.1-2.3 with diameter product residual voltage ratio.The second, at existing ZnO-Bi
2O
3-TiO
2System has added antimony oxide (Sb on the prescription basis in right amount
2O
3), in sintering process it can with the bismuth oxide (Bi in the system
2O
3) reaction generates burnt green stone mutually with zinc oxide (ZnO); Jiao Lvshi changes spinelle into and is uniformly distributed in the crystal boundary mutually about 850 ℃; Suppress zinc oxide grain misgrowth through bundle nail effect, can pass through the average grain diameter of the effective controlled oxidation zinc of the addition content crystal grain of adjusting antimony oxide simultaneously, satisfying under the prerequisite of through-current capability; Effectively reduce product thickness, reduce residual voltage ratio.
The present invention and conventional low high energy product are carried out performance comparison, and all to be of a size of the product of Ф 60h20 (diameter 60mm, height 20mm), each 100 are carried out following performance comparison, and the result sees table 1.
Table 1 the present invention and the contrast of conventional low high energy properties of product
From table 1, can drawing resistor disc that the present invention makes, to have electric potential gradient moderate, the characteristics of through-flow function admirable.
Embodiment
Embodiment 1
Middle manufacturing approach of pressing the high energy ZnO resistors sheet may further comprise the steps:
(1) proportioning raw materials: in molar percentage; Additive: antimony oxide 0.5%, titanium dioxide 0.1%; Bismuth oxide 0.5%, cobalt sesquioxide 0.8%, manganese carbonate 0.6%, silver nitrate 0.001%, tin ash 0.3%, strontium carbonate 0.002%, boric acid 0.001%, surplus are major ingredient zinc oxide;
(2) ball milling: the proportioning of (1) takes by weighing additive and adds in the ball mill set by step, by additive: pure water=1:1 ratio adding pure water, stirring ball-milling 3 hours;
(3) mixing and mist projection granulating of additive and zinc oxide: add good additive, zinc oxide and bond, the aluminum nitrate of ball milling in the dispersion mill, ball milling 2 hours, the weight ratio of bond and zinc oxide is 1:100, the weight ratio of aluminum nitrate and additive is 1:300; 55 ℃ of control slurry temperatures carry out mist projection granulating, process the material powder;
(4) moisture, moulding: the material powder that will make is undertaken moisture by 1%, and promptly per 100 kilograms of material powder add 1 kilogram in water, old 12 hours, press 3.2g/cm
3Be pressed into product;
(5) sintering: the product that compacting is obtained is got rid of bonds in 420 ℃, in 20 hours reaction time, again in 1100 ℃ of sintering, is incubated 2 hours.
The particle diameter of material powder is controlled at 80-120 μ m in the step (3).
Can also add the release agent glycerine in the aqueous process in the step (4).
Said bond is PVA-1799.
Embodiment 2
Middle manufacturing approach of pressing the high energy ZnO resistors sheet may further comprise the steps:
(1) proportioning raw materials: in molar percentage; Additive: antimony oxide 1.0%, titanium dioxide 0.4%, bismuth oxide 0.8%, cobalt sesquioxide 1.5%, manganese carbonate 1.0%, silver nitrate 0.002%, tin ash 0.5%, strontium carbonate 0.004%, boric acid 0.003%, surplus are major ingredient zinc oxide;
(2) ball milling: the proportioning of (1) takes by weighing additive and adds in the ball mill set by step, by additive: pure water=1:1 ratio adding pure water, stirring ball-milling 5 hours;
(3) mixing and mist projection granulating of additive and zinc oxide: add good additive, zinc oxide and bond, the aluminum nitrate of ball milling in the dispersion mill, ball milling 2 hours, the weight ratio of bond and zinc oxide is 1:100, the weight ratio of aluminum nitrate and additive is 1:300; 60 ℃ of control slurry temperatures carry out mist projection granulating, process the material powder;
(4) moisture, moulding: the material powder that will make is undertaken moisture by 2%, and promptly per 100 kilograms of material powder add 2 kilograms in water, old 24 hours, press 3.25g/cm
3Be pressed into product;
(5) sintering: the product that compacting is obtained is got rid of bonds in 420 ℃, in 20 hours reaction time, again in 1200 ℃ of sintering, is incubated 4 hours.
The particle diameter of material powder is controlled at 80-120 μ m in the step (3).
Aqueous process can also add the release agent glycerine in the step (4).
Said bond is PVA-1799.
Embodiment 3
Middle manufacturing approach of pressing the high energy ZnO resistors sheet may further comprise the steps:
(1) proportioning raw materials: in molar percentage; Additive: antimony oxide 1.2%, titanium dioxide 0.6%, bismuth oxide 1.3%, cobalt sesquioxide 2.1%, manganese carbonate 1.3%, silver nitrate 0.003%, tin ash 0.6%, strontium carbonate 0.005%, boric acid 0.006%, surplus are major ingredient zinc oxide;
(2) ball milling: the proportioning of (1) takes by weighing additive and adds in the ball mill set by step, by additive: pure water=1:1 ratio adding pure water, stirring ball-milling 5 hours;
(3) mixing and mist projection granulating of additive and zinc oxide: add good additive, zinc oxide and bond, the aluminum nitrate of ball milling in the dispersion mill, ball milling 4 hours, the weight ratio of bond and zinc oxide is 1:100, the weight ratio of aluminum nitrate and additive is 1:300; 55 ℃-60 ℃ of control slurry temperatures carry out mist projection granulating, process the material powder;
(4) moisture, moulding: the material powder that will make is undertaken moisture by 1%, and promptly per 100 kilograms of material powder add 1 kilogram in water, old 20 hours, press 3.25g/cm
3Be pressed into product;
(5) sintering: the product that compacting is obtained is got rid of bonds in 420 ℃, in 24 hours reaction time, again in 1200 ℃ of sintering, is incubated 4 hours.
The particle diameter of material powder is controlled at 80-120 μ m in the step (3).
Can also add the release agent glycerine in the aqueous process in the step (4).
Said bond is PVA-1799.
Claims (4)
1. the manufacturing approach of middle pressure high energy ZnO resistors sheet is characterized in that, may further comprise the steps:
(1) proportioning raw materials: in molar percentage; Additive: antimony oxide 0.5-1.2%, titanium dioxide 0.1-0.6%, bismuth oxide 0.5-1.3%, cobalt sesquioxide 0.8-2.1%, manganese carbonate 0.6-1.3%, silver nitrate 0.001-0.003%, tin ash 0.3-0.6%, strontium carbonate 0.002-0.005%, boric acid 0.001-0.006%, surplus is a major ingredient zinc oxide;
(2) ball milling: the proportioning of (1) takes by weighing additive and adds in the ball mill set by step, by additive: pure water=1:1 ratio adding pure water, stirring ball-milling 3-5 hour;
(3) mixing and mist projection granulating of additive and zinc oxide: add the good additive of zinc oxide, bond, aluminum nitrate and ball milling in the dispersion mill; Ball milling 2-4 hour; The weight ratio of bond and zinc oxide is 1:100, and the weight ratio of aluminum nitrate and additive is 1:300; 55 ℃-60 ℃ of control slurry temperatures carry out mist projection granulating, process the material powder;
(4) moisture, moulding: the material powder that will make is undertaken moisture by 1-2%, old 12-24 hour, presses 3.2-3.25g/cm
3Be pressed into product;
(5) sintering: the product that compacting is obtained is got rid of bonds in 420 ℃, reaction time 20-24 hour, again in 1100-1200 ℃ of sintering, is incubated 2-4 hour.
2. press the manufacturing approach of high energy ZnO resistors sheet in according to claim 1, it is characterized in that, the particle diameter of the powder of material described in the step (3) is controlled at 80-120 μ m.
3. press the manufacturing approach of high energy ZnO resistors sheet in according to claim 1, it is characterized in that, add the release agent glycerine described in the step (4) in the aqueous process.
4. press the manufacturing approach of high energy ZnO resistors sheet in according to claim 1, it is characterized in that bond is PVA-1799 described in the step (3).
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|---|---|---|---|
| CN2012101948426A CN102723157A (en) | 2012-06-14 | 2012-06-14 | Manufacturing method for medium-voltage high-energy zinc oxide resistor disc |
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| CN2012101948426A CN102723157A (en) | 2012-06-14 | 2012-06-14 | Manufacturing method for medium-voltage high-energy zinc oxide resistor disc |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400676A (en) * | 2013-07-30 | 2013-11-20 | 扬州发运电气有限公司 | Manufacturing method of low-voltage and high-energy zinc oxide resistor disc |
| CN103646738A (en) * | 2013-12-13 | 2014-03-19 | 中国西电电气股份有限公司 | Preparation method of high-resistance layer for side surface of zinc oxide resistor disc |
| CN108154983A (en) * | 2017-12-29 | 2018-06-12 | 国网湖南省电力有限公司 | Arrester zinc oxide resistance sheet and preparation method thereof |
| CN109851351A (en) * | 2018-12-19 | 2019-06-07 | 安徽自动化仪表有限公司 | A kind of low-temperature stability pressure transmitter pressure cell and preparation method thereof |
| CN109887694A (en) * | 2019-03-27 | 2019-06-14 | 扬州发运电气有限公司 | High energy ZnO resistors piece making method is pressed in one kind |
| CN112794714A (en) * | 2021-04-14 | 2021-05-14 | 湖南防灾科技有限公司 | Zinc oxide resistance card, preparation method thereof and method for regulating and controlling potential gradient and through-current capacity of zinc oxide resistance card |
Citations (4)
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|---|---|---|---|---|
| EP0699641A1 (en) * | 1994-08-29 | 1996-03-06 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing zinc oxide sintered compact body |
| CN1963961A (en) * | 2006-11-21 | 2007-05-16 | 江苏苏净集团有限公司 | A method for microwave sintering zinc oxide pressure-sensitive resistor |
| CN101531507A (en) * | 2009-04-10 | 2009-09-16 | 孙丹峰 | High energy type zinc oxide piezoresistor composite powder and method for manufacturing piezoresistor |
| CN102390992A (en) * | 2011-08-09 | 2012-03-28 | 南阳金冠电气有限公司 | Resistance card for direct-current lightning arrester and production process thereof |
-
2012
- 2012-06-14 CN CN2012101948426A patent/CN102723157A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0699641A1 (en) * | 1994-08-29 | 1996-03-06 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing zinc oxide sintered compact body |
| CN1963961A (en) * | 2006-11-21 | 2007-05-16 | 江苏苏净集团有限公司 | A method for microwave sintering zinc oxide pressure-sensitive resistor |
| CN101531507A (en) * | 2009-04-10 | 2009-09-16 | 孙丹峰 | High energy type zinc oxide piezoresistor composite powder and method for manufacturing piezoresistor |
| CN102390992A (en) * | 2011-08-09 | 2012-03-28 | 南阳金冠电气有限公司 | Resistance card for direct-current lightning arrester and production process thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400676A (en) * | 2013-07-30 | 2013-11-20 | 扬州发运电气有限公司 | Manufacturing method of low-voltage and high-energy zinc oxide resistor disc |
| CN103646738A (en) * | 2013-12-13 | 2014-03-19 | 中国西电电气股份有限公司 | Preparation method of high-resistance layer for side surface of zinc oxide resistor disc |
| CN103646738B (en) * | 2013-12-13 | 2016-08-24 | 中国西电电气股份有限公司 | A kind of preparation method of high-resistance layer for side surface of zinc oxide resistor disc |
| CN108154983A (en) * | 2017-12-29 | 2018-06-12 | 国网湖南省电力有限公司 | Arrester zinc oxide resistance sheet and preparation method thereof |
| CN109851351A (en) * | 2018-12-19 | 2019-06-07 | 安徽自动化仪表有限公司 | A kind of low-temperature stability pressure transmitter pressure cell and preparation method thereof |
| CN109887694A (en) * | 2019-03-27 | 2019-06-14 | 扬州发运电气有限公司 | High energy ZnO resistors piece making method is pressed in one kind |
| CN112794714A (en) * | 2021-04-14 | 2021-05-14 | 湖南防灾科技有限公司 | Zinc oxide resistance card, preparation method thereof and method for regulating and controlling potential gradient and through-current capacity of zinc oxide resistance card |
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Application publication date: 20121010 |